one bad skylark
New member
I have a 2004 Cavalier about every 4,000 miles i change my oil.( conventional oil) I'm loosing about 1 quart every oil change. I put cardboard down on the floor where I park. Can't find any leaks anywhere. The car does not seem to smoke at all. The car has about 113,000 miles on it. Is this common? Any areas to start looking at?